Mage Smith (3.5e Prestige Class)

From D&D Wiki

The mage smith is a magician who has settled down in one carefully chosen location, building himself a tower to house himself, his library and his forge. He now focuses on accessing his hitherto latent psionic powers, using them to recruit followers and to explore the planes from within the safety of his tower.

The total number of powers a mage smith can manifest in a day is limited only by his daily power points.

A mage smith simply knows his powers; they are ingrained in his mind. He does not need to prepare them (in the way that some spellcasters prepare their spells), though he must get a good night’s sleep each day to regain all his spent power points.